Govaert & Vanhoutte architects 

The view from the river shows a long floating horizontal concrete framework that defines the ground floor, inside as well as outside.

https://archello.com/project/residence-vdb?fbclid=IwAR2FfOvPFcBoygnYwRncC99kUgd65a0kH5yoCJ83sxawkp59mSmGyZF4FTk